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A blockchain-based privacy protection and sharing method and system for steel guarantee documents

A technology for privacy protection and warranty certificates, applied in file systems, digital data protection, instruments, etc., can solve the problem of the authenticity of steel warranty certificates, and it is difficult to prove that the warranty certificate has not been tampered with or forged, etc., to solve the problem of large data volume storage and non-tamperable issues, solve privacy protection issues, and ensure real and effective results

Active Publication Date: 2021-02-26
欧冶云商股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, from the analysis of the current situation, on the one hand, there is a problem of authenticity of the steel warranty, and it is difficult to prove that the warranty has not been tampered with or forged during the steel transaction process; on the other hand, steel mills want to protect their own warranty, and other steel mills cannot obtain it at will. Your own warranty, only the buyer can download the warranty after purchasing

Method used

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  • A blockchain-based privacy protection and sharing method and system for steel guarantee documents
  • A blockchain-based privacy protection and sharing method and system for steel guarantee documents

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Embodiment 1

[0034] like figure 1 As shown, the present embodiment provides a blockchain-based steel material warranty privacy protection and sharing method, the method comprising the following steps: building a blockchain platform (quality assurance privacy protection system), steel production institutions (steel mills) and The steel sales organization (electricity business trading platform) accesses the block chain platform based on unique identity authentication information, and the unique identity authentication information includes identity code identity_key and key pair (public and private public_key and private key private_key); block chain platform Receive the steel resource information resource_info, quality assurance information quality_info, and quality assurance document description information (excluding the original document) quality_file_info uploaded by the signature of the steel production organization, and simultaneously save the encrypted quality assurance document qualit...

Embodiment 2

[0049] This embodiment provides a blockchain-based steel material warranty privacy protection and sharing system, including: a blockchain platform for realizing information interaction between steel production organizations and steel sales organizations, using the method described in Embodiment 1 Privacy protection and sharing of steel warranty documents; and a distributed file storage module for storing encrypted warranty documents.

[0050] The blockchain platform is connected to multiple steel production institutions, and the data management of steel factories will be realized by data privacy protection. A steel factory cannot access the quality assurance documents of other steel factories. In the steel mill data management, the steel mill can upload the quality assurance information and warranty certificate at one time, and the steel material guarantee data is presented to the buyer in different forms before and after the buyer purchases. The overall business logic and auth...

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Abstract

The present invention relates to a method and system for privacy protection and sharing of steel material guarantee documents based on block chain. Block chain platform; the block chain platform receives the steel resource information, quality assurance information and warranty document description information uploaded by the signature of the steel production organization, and at the same time saves the encrypted warranty document file in the distributed file storage module; When the chain platform receives the query request from the steel sales agency, it will feed back the corresponding quality assurance information; after the block chain platform receives the purchase confirmation information from the steel sales agency, it will call the distributed file storage module in response to the download request. The corresponding encrypted warranty document file is fed back, and after decryption, it can be downloaded by purchased users. Compared with the prior art, the present invention has the advantages of high information security.

Description

technical field [0001] The present invention relates to the technical field of manufacturing and information technology in the steel industry, and in particular to a method and system for privacy protection and sharing of steel material guarantee documents based on blockchain. Background technique [0002] Each steel product will be accompanied by a quality assurance certificate when it leaves the factory, indicating the specifications and performance parameters of the raw materials used, and providing the test report or results of the main performance indicators, which has legal effect. At present, most of the steel factory warranty PDF files are stored locally in the steel factory. A small number of steel factories provide the data to the steel e-commerce trading platform through interface docking. Some steel factories only provide the website of their second-party steel factory sales platform, and users log in and download it. . In the steel e-commerce trading platform, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/60G06F21/62G06F21/64G06F16/13G06F16/182
CPCG06F21/602G06F21/6218G06F21/64G06F16/137G06F16/182
Inventor 杨英杰秦钢仲跻炜朱彭生邹晓峰
Owner 欧冶云商股份有限公司
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